Pfizer and BioNTech are launching the first clinical trial in the U.S. to look at how the coronavirus vaccine affects pregnant women, and also announced plans for a clinical trial of the vaccine in children. They also submitted new data to the FDA showing that the vaccine can safely be stored at more moderate temperatures. CBSN's Tanya Rivero spoke with Dr. Leo Nissola, a physician and immunotherapy scientist, about the latest developments.
